package com.difsonapps.android.joinme.db;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

public class DatabaseHandler extends SQLiteOpenHelper{

	// All Static variables
    // Database Version
    private static final int DATABASE_VERSION = 1;
	private final String TAG = this.getClass().getSimpleName();
    // Database Name
    private static final String DATABASE_NAME = "contactsManager";
 
    // Contacts table name
    private static final String TABLE_CONTACTS = "contacts";
 
    // Contacts Table Columns names
    private static final String KEY_ID = "id";
    private static final String KEY_CN_ID = "contact_id";
    private static final String KEY_NAME = "name";
    private static final String KEY_PH_NO = "phone_number";
    private static final String KEY_SV_ID = "server_id";
 
    public DatabaseHandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }
 
    // Creating Tables
    @Override
    public void onCreate(SQLiteDatabase db) {
        String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
                + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," 
                + KEY_CN_ID + " BIGINT,"
        		+ KEY_NAME + " TEXT,"
                + KEY_PH_NO + " TEXT,"
                + KEY_SV_ID + " BIGINT" 
        		+ ")";
        db.execSQL(CREATE_CONTACTS_TABLE);
    }
 
    // Upgrading database
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
 
        // Create tables again
        onCreate(db);
    }
 
    /**
     * All CRUD(Create, Read, Update, Delete) Operations
     */
 
    // Adding new contact
    public void addContact(Contact contact) {
        SQLiteDatabase db = this.getWritableDatabase();
 
        ContentValues values = new ContentValues();
        values.put(KEY_CN_ID, contact.getContactid()); // Contact Name
        values.put(KEY_NAME, contact.getName()); // Contact Name
        values.put(KEY_PH_NO, contact.getPhoneNumber()); // Contact Phone
        values.put(KEY_SV_ID, contact.getServerid()); // Contact Phone
 
        // Inserting Row
        db.insert(TABLE_CONTACTS, null, values);
        db.close(); // Closing database connection
    }
 
    // Getting single contact
    public Contact getContact(int id) {
        SQLiteDatabase db = this.getReadableDatabase();
        Contact contact = null;
        Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,KEY_CN_ID,
                KEY_NAME, KEY_PH_NO,KEY_SV_ID}, KEY_ID + "=?",
                new String[] { String.valueOf(id) }, null, null, null, null);
        if (cursor != null && cursor.moveToFirst())
        { 
        	 contact = new Contact(Integer.parseInt(cursor.getString(0)),Long.parseLong(cursor.getString(1)),
                     cursor.getString(2), cursor.getString(3),Long.parseLong(cursor.getString(4)));
        }
           
        // return contact
        return contact;
    }
    
    // Getting single contact
    public Contact getContactContactId(long contactid) {
        SQLiteDatabase db = this.getReadableDatabase();
        Contact contact = null;
        Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,KEY_CN_ID,
                KEY_NAME, KEY_PH_NO,KEY_SV_ID}, KEY_CN_ID + "=?",
                new String[] { String.valueOf(contactid) }, null, null, null, null);
        if (cursor != null && cursor.moveToFirst())
        {


       	 contact = new Contact(Integer.parseInt(cursor.getString(0)),Long.parseLong(cursor.getString(1)),
                    cursor.getString(2), cursor.getString(3),Long.parseLong(cursor.getString(4)));
       
        }
          
        // return contact
        return contact;
    }
    
    // Getting single contact
    public Contact getContactServerId(long serverid) {
        SQLiteDatabase db = this.getReadableDatabase();
        Contact contact = null;
        Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,KEY_CN_ID,
                KEY_NAME, KEY_PH_NO,KEY_SV_ID}, KEY_SV_ID + "=?",
                new String[] { String.valueOf(serverid) }, null, null, null, null);
        if (cursor != null && cursor.moveToFirst())
        {

       	 contact = new Contact(Integer.parseInt(cursor.getString(0)),Long.parseLong(cursor.getString(1)),
                 cursor.getString(2), cursor.getString(3),Long.parseLong(cursor.getString(4)));
    
        }
          
        // return contact
        return contact;
    }
     
    // Getting All Contacts
    public List<Contact> getAllContacts() {
        List<Contact> contactList = new ArrayList<Contact>();
        // Select All Query
        String selectQuery = "SELECT  * FROM " + TABLE_CONTACTS;
 
        SQLiteDatabase db = this.getWritableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);
 
        // looping through all rows and adding to list
        if (cursor.moveToFirst()) {
            do {
                Contact contact = new Contact();
                contact.setId(Integer.parseInt(cursor.getString(0)));
                contact.setContactid(Long.parseLong(cursor.getString(1)));
                contact.setName(cursor.getString(2));
                contact.setPhoneNumber(cursor.getString(3));
                contact.setServerid(Long.parseLong(cursor.getString(4)));
                // Adding contact to list
                contactList.add(contact);
            } while (cursor.moveToNext());
        }
 
        // return contact list
        return contactList;
    }
    
    // Getting All Contacts
    public HashMap<String,Contact> getMapContacts() {
    	HashMap<String,Contact> contactMap = new HashMap<String,Contact>();
        // Select All Query
        String selectQuery = "SELECT  * FROM " + TABLE_CONTACTS;
 
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);
        Log.e(TAG, "cursor count "+cursor.getColumnNames()[0]);
        // looping through all rows and adding to list
        if (cursor.moveToFirst()) {
            do {
            	
            	  Contact contact = new Contact();
                  contact.setId(Integer.parseInt(cursor.getString(0)));
                  contact.setContactid(Long.parseLong(cursor.getString(1)));
                  contact.setName(cursor.getString(2));
                  contact.setPhoneNumber(cursor.getString(3));
                  contact.setServerid(Long.parseLong(cursor.getString(4)));
                // Adding contact to list
                contactMap.put(cursor.getString(1),contact);
            } while (cursor.moveToNext());
        }
 
        // return contact list
        return contactMap;
    }
 
    // Updating single contact
    public int updateContact(Contact contact) {
        SQLiteDatabase db = this.getWritableDatabase();
 
        ContentValues values = new ContentValues();
        values.put(KEY_CN_ID, contact.getContactid()); // Contact Name
        values.put(KEY_NAME, contact.getName()); // Contact Name
        values.put(KEY_PH_NO, contact.getPhoneNumber()); // Contact Phone
        values.put(KEY_SV_ID, contact.getServerid()); // Contact Phone
 
        // updating row
        return db.update(TABLE_CONTACTS, values, KEY_ID + " = ?",
                new String[] { String.valueOf(contact.getId()) });
    }
 
    // Deleting single contact
    public void deleteContact(Contact contact) {
        SQLiteDatabase db = this.getWritableDatabase();
        db.delete(TABLE_CONTACTS, KEY_ID + " = ?",
                new String[] { String.valueOf(contact.getId()) });
        db.close();
    }
 
 
    // Getting contacts Count
    public long getContactsCount() {
        String countQuery = "SELECT  * FROM " + TABLE_CONTACTS;
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery(countQuery, null);
        long count  = cursor.getCount();
        cursor.close();
 
        // return count
        return count;
    }
 
}
